Closure



SePt- 27, 1932. L. R. N. cARvALHo 1,879,082

CLOSURE Filed Nov. 5, 1930 Patented Sept. 27, 1932 UNITED STATES v'PtrIaN'r ort-ICE LESLIE-R. N. CARVALHO, OF TOLEDO, OHIO, ASSIGNOR T0 THE CLOSURE SERVICE COM- PANY, OF TOLEDO, OHIO, A CORPORATION OHIO CLOSURE Application med November s, 1930. serial No. 492,978.

The present invention relates to improvements in closures for bottles and ljars and more particularly to that type of closure'or cap which is formed from sheet-metal and 1n- .cludes an attaching flange with threads or other means for engaging the neck portion of the bottles or jars.

In order to improve the general appear-r in this latter respect with the result that frequently during application of" the closures to containers and removal thereof, the outer cap rotates relative to the inner cap resulting in the necessity of removing the inner and outer caps one at a time. This is, of course,

highly objectionable.

An object of the present invention is the provision of novel means for positively securing the inner and outer caps against relative rotary movement and in some instances, incidentally improving the general appearance of the closure as compared with double caps heretofore manufactured. To this end there is provided an annular series of vertical hollow ribs in the attachingfiange of either the inner orouter'cap, bymeansuof which the rigidity of the flange is materially increased and a suficient degree of frictional contact between the ianges obtained to positively prevent relative rotary movement be'- tween the two caps. y By properly'forming the ribs onthe flange or skirt portions of the outer cap, the general appearance of the cap asa whole is greatly improved. .I

In the drawing:

`. /Fig. 1 is a fragmentary elevational view showing the. bottle closure embodying the present invention. i

Fig. 2 isa vertical sectional view of then cl'osure..

Fig. 3 is a fragmentary horizontal sectional view taken through the flanges of both caps.

Fig. 4 is a vertical sectional view showing another form of the invention.

Fig. 5 is a sectional view taken substantially along the line V-V of Fig. 4.

In one form of the invention (Figs. 1, 2, and 3,) the closure consists of inner and outer caps 6 and l7 respectively, both of which may be stamped from sheet metal.v The inner cap 6 includes a circular topy portion'8 or button and a depending circular attaching flange 9 which in the present instance is provided with screw threads 10 intended to engage threads, knobs, or the like, (not shown) on the neck 1l of a receptacle. A liner 12 or sealing gasket may be carried by the innercap 6.

For the purpose of obscuring the threads 10 from View and generally improving the appearance of the closure, and incidentally giving it at least some degree of ornamentality, the outer cap 7 is telescoped over the inner cap 6 and attached in a manner which prevents relative rotation of the caps. rIjhisy outer cap 7 includes top and skirt or flangel portions 13 :and 14 respectively; the latter being coextensive with the attaching flange 9 on the inner cap. Relative rotation of the two caps is prevented, and a finished ornamental appearance given the closure as a.

whole, by forming an annular series of vertical hollow ribs 15 in the iange` 14 or skirt portion of the outer cap. These ribs 15 pro- 1 ect radi ally outward beyond the exposed surface of the outer cap and are so formed that they result in the production of an outer cap whose internal diameter is slightly less than the diameter ofj the inner cap. Thus, when the outer cap isy telescoped over the inner' cap, the ribs, which are hollow,

allow the skirt or flange portion of the outer cap to expand sufficiently to` permit such telescopi'ng, yet exerting suchba contracting pressure on the fiange that the frictional'contact between the flanges of the inner and outer caps is great enoughto positively prevent relative rotation of the caps at all times.1 These ribs also materially stiften the flange 14 and,y thereby contribute to vthe 100 'formation of an exceptionally substantial i closure.

In Figs. 4 and 5, another form of the invention is shown in which the attaching ange 9 of the inner cap 6 is provided with an annular series of comparatively short vertical hollow ribs 16 arranged quite close together and adapted to engage the inner surface of the skirt or flange 14 on the outer cap 7. In this form the ribs in a sense assume the form of corrugations and are disposed between the threaded area of the at taching flange 9 and the top or button 8 thereof. Preferably, these ribs or corrugations are -so formed that when the inner and outer caps are assembled, portions of the ribs project a short distance into the metal forming the skirt 14 of the outer cap. This feature is shown in a somewhat exaggerated form in Fig. 5 in order to bring out that such engagement between the inner and outer caps is effected so that relative rotation between the inner and outer caps is prevented.

By embodying either construction herein set forth, in a bottle or jar closure, the threads or other attaching means will be completely obscured from view and at the same time the outer cap or cover positively held in place and against rotation relative to the inner cap during` removal or application of the closure.

Modifications may be resorted to within the spirit and scopeof the appended claims.

What I claim is:

J 1. In combination, a metal closure comprising inner and outer caps telescoped one within the other, each cap including circular i. tion, a threaded circular ange depen top anl depending flange' portions, and means formed on the flange of the inner cap to provide part of a connection between the closure and a container to be sealed, one of said flanges haying preformed ribs extending transversely thereof and operating to hold the calps against relative rotation.

2. closure comprising a circular top ormg therefrom.A a cover arranged over the exterior surface of the flange, and preformed ribs extending in a direction transverse to the length' of said flange for causing sufficient i frictional. contact -between the cover and if li'ange to hold them against relative rotaion. K I

3. A closure comprising inner and outer caps, each ca-lp including a circular top and a dependmg s irt portion, attaching threads on the skirt of the inner cap, and an annular i series of outwardly projecting vertical ribs formedon the skirt of the inner cap between the threads and the top portion, said ribs frlctlonally engaging the adjacent faces of the outer cap and holding saidl caps against relative rotation.

4. A closure comprising a circular top portion, a threaded circular Bange depending therefrom, a coverincluding a circular flange adapted to surround-said threaded circular flange, and an annular series of outwardly projecting hollow ribs extending transversely of the Hangs on the cover, said ribs being yieldable and causing a suicient degree of frictional contact of those areas of the cover between the ribs with the threaded ange to hold said anges against relative rotation.

5. A closure comprising a circular top por-l LESLIE R. N. CARVALHO. 

